Any human that isn’t a developing child, or an immune system deficient (elderly or other issues) can easily handle LEAD, MERCURY, and other poisons. Humans are way more resilient than you’d normally think. But only in the middle spectrum, not the ends of the age window.

In my .brd files, I put a piece of text down on the silkscreen with $Revision$ in it. Then I enable svn:keywords on that .brd file. Subversion will then insert the version control revision right onto my silkscreen. It is seriously handy…

When these are used with higher power devices, a heat sink is recommended. The hole size on the TO-220 sink (https://www.sparkfun.com/products/121) looks compatible. Are there any problems using those, that I’m not seeing?

I use the command line for my development, and Aquamacs for my editor. I’ll second sgrace’s recommendation for MacPorts; it seems to have a larger collection than Homebrew. And XCode is a necessity (and an easy install) for any command line development (I don’t use the IDE, however).

A while back, I wrote a blog post for PIC programming from the command line. I’ll shortly be posting a similar one for Arduino programming from the Mac OS command line.

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